Resistors Make Possible Metal GlazeTM High Power Density Surface Mount Power Resistor MRC Series TM Metal Glaze High Power Density MRC Series Surface Mount Power Resistor 1/2 watt in 1/8 watt package MRC1/2: 0.05 to 1.0 (contact factory for higher values) * 1/2 watt in 1/8 watt package operating(2010 temperature * 150C 1 watt maximum in 1/2 watt package footprint) * Superior MRC1/2: surge 0.05 handling to 1.0 capability (contact factory forVersions higher values) RoHS compliant available * 150C maximum operating temperature * Superior surge handling capability Metal GlazeTM thick film element fired at 1000C to solid ceramic substrate High temperature dielectric coating All Pb-free parts comply with EU Directive 2011/65/EU (RoHS2) 60/40 Solder over nickel barrier Electrical Data Size Industry Code1 Footprint C 1206 IRC Type Max. Power Rating MRC1/2 1/2W @ 70C Working Voltage2 200 Max. Resistance TCR Tolerance Voltage Range (ohms)3 (ppm/C)3 (%)3 400 Product Catagory 0.1 to 0.99 1,2,5 100 Low Range 1.0 to 10K 1,2,5 50,100 Standard 20 to 10K 0.25, 0.5 50,100 Tight Tolerance MRC Applications: The MRC1/2 will dissipate 1/2 watt at 70C on a 1206 footprint. The MRC is recommended for applications where board real estate is a major concern. Due to high power density and superior surge handling capability, it is also recommended as a direct replacement on existing board designs where standard 1206 resistors are marginal or failing. Environmental Data Characteristics Maximum Change Test Method Temperature Coefficient As specified MIL-R-55342E Par 4.7.9 (-55C + 125C) Thermal Shock (0.5% + 0.01) MIL-R-55342E Par 4.7.3 (-65C + 150C, 5 cycles) Low Temperature Operation (0.25% + 0.01) MIL-R-55342E Par 4.7.4 (-65C @ working voltage) Short Time Overload (1.0% + 0.01) MIL-R-55342E Par 4.7.5 2.5 x PxR for 5 seconds High Temperature Exposure (0.5% + 0.01) MIL-R-55342E Par 4.7.6 (+150C for 100 hours) Resistance to Bonding Exposure (0.25% + 0.01) MIL-R-55342E Par 4.7.7 (Reflow soldered to board at 260C for 10 seconds) Solderability 95% minimum coverage MIL-STD-202, Method 208 (245C for 5 seconds) Moisture Resistance (0.5% + 0.01) MIL-R-55342E Par 4.7.8 (10 cycles, total 240 hours) Life Test (1.0% + 0.01) MIL-R-55342E Par 4.7.10 (2000 hours @ 70C intermittent) Terminal Adhesion Strength (1% + 0.01) no mechanical damage 1200 gram push from underside of mounted chip for 60 seconds Resistance to Board Bending (1% + 0.01) no mechanical damage Chip mounted in center of 90mm long board, deflected 5mm so as to exert pull on chip contacts for 10 seconds General Note TT Electronics reserves the right to make changes in product specification without notice or liability. All information is subject to TT Electronics' own data and is considered accurate at time of going to print. www.ttelectronicsresistors.com (c) TT Electronics plc 01.16 Metal GlazeTM High Power Density Surface Mount Power Resistor Make Possible MRC Series Physical Data MRC Series L C TM Metal Glaze High Power Density Surface Mount Power Resistor W MRC Series Industry Metal GlazeSize High Power Density IRC Type Code Footprint Actual Size Repetitive Surge Curve Surface Mount Power Resistor Dimensions (Inches and (mm)) TM 1206 0.128 0.007 (3.25 0.18) Peak Power (watts) Repetitive Surge Curve 0.063 0.010 (1.60 0.25) 100 % Of Rated Power C 0.020 0.010 (0.51 0.25) Power Derating Curve 100 1000 MRC 1/2 60 100 % Of Rated Power MRC 1000 1/2 W Power Derating Curve C L Peak Power (watts) 0 10100 MRC 1/2 60 25 70 150 Ambient Temperature (C) 0 1 10 0.0001 0.001 0.01 0.1 25 1 70 150 Ambient Temperature (C) Surge or Pulse Duration (seconds) Note: Use for repetitive pulses where the average power dissipation is not to exceed the component rating at 70C. Surge handling capacity for1low-repetitive surges may be significantly greater than shown above. 0.0001factory for recommendations. 0.001 0.01 Contact 0.1 1 Surge or Pulse Duration (seconds) Note: Use for repetitive pulses where the average power dissipation is not to exceed the component rating at 70C. Surge handling capacity for low-repetitive surges may be significantly greater than shown above. Contact factory for recommendations. Ordering Data Sample Part No. MRC1/2 100 1000 F 13 LF IRC Type (MRC 1/2) Ordering Data Temperature Coefficient 50 ppm, 100 ppm, 200 ppm Sample Part No. Resistance Value MRC1/2 100 1000 F 13 LF (100 and greater - First 3 significant figures plus 4th digit multiplier) Example: 100 = 1000, 1000 = 1001, 150,000 = 1503 IRC Type (Less than 100 - "R" is used to designate decimal) (MRC 1/2) Example: 51 = 51R0, 1 = 1R00, 0.25 = R250 Temperature Coefficient Tolerance 50 ppm, 100 ppm, 200 ppm (C = 0.25%, D = 0.5%, F = 1.0%, G = 2.0%, J = 5.0%) Resistance Value Packaging Code* (100 and greater - First 3 significant figures plus 4th digit multiplier) (BLK = Bulk, 7 = 7" Reel, 13 = 13" Reel) Example: 100 = 1000, 1000 = 1001, 150,000 = 1503 (Less than 100 - "R" is used to designate decimal) RoHS Compliance Example: 51 = 51R0, 1 = 1R00, 0.25 = R250 LF = RoHS compliant version Tolerance (C = 0.25%, D = 0.5%, F = 1.0%, G = 2.0%, J = 5.0%) General Note Packaging Code* TT Electronics reserves the right to make changes in product specification without notice or liability. (BLK = Bulk, 7 = 7" Reel, 13 = 13" Reel) All information is subject to TT Electronics' own data and is considered accurate at time of going to print. RoHS Compliance www.ttelectronicsresistors.com RoHS compliant (c)LF TT= Electronics plc version 01.16 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: TT Electronics: MRC1/2100-51R0-FTR MRC1/21002201JLF MRC1-100-2500-F-7 MRC1/2-100-1001-F-7 MRC1/2-100-1000-F-7 MRC1/2-100-1002-F-7 MRC1/2-100-10R0-F-7 MRC1/2-100-1R0-F-7 MRC1-100-25R0-F-7 MRC1/2-100-75R0-F-7 MRC1/2-100-1500-F-7